Structural, electrical conductance and complex impedance analysis of (Nd1−xCex)0.7Sr0.3MnO3 (0≤x≤0.20) perovskite
In: ISSN: 0272-8842 ; Ceramics International ; https://univ-rennes.hal.science/hal-01174897 ; Ceramics International, 2015, 41 (2, Part A), pp.1929--1936. ⟨10.1016/j.ceramint.2014.10.001⟩, 2015
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Zugriff:
International audience ; Polycrystalline samples of (Nd1−xCex)0.7Sr0.3MnO3 (x=0, 0.10 and 0.20) were prepared by a high-temperature solid-state reaction technique. The X-ray diffraction study has shown that all the samples exhibit a single phase with orthorhombic structure (space group Pnma). From the resistivity data, it is found that all the samples show metal to semiconductor transition and the transition temperature decreases with the Ce doping. The complex impedance has been investigated in the temperature range 80–320 K and in the frequency range 40 Hz–1 MHz. AC conductance analyses indicate that the conduction mechanism is strongly dependent on temperature and frequency. The impedance plane plot shows semicircle arcs at different temperatures and an electrical equivalent circuit has been proposed to explain the impedance results. The activation energies obtained from the conductance is slightly higher than that from time relaxation analyses
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Structural, electrical conductance and complex impedance analysis of (Nd1−xCex)0.7Sr0.3MnO3 (0≤x≤0.20) perovskite
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| Autor/in / Beteiligte Person: | Bellouz, Ridha ; Kallel, Sami ; Khirouni, Kamel ; Peña, Octavio ; Oumezzine, Mohamed ; Laboratoire Physico-Chimie des Matériaux Monastir ; Faculté des Sciences de Monastir (FSM) ; Université de Monastir - University of Monastir (UM)-Université de Monastir - University of Monastir (UM) ; Laboratoire de Physique des Matériaux et des Nanomatériaux Appliquée à l’environnement ; Faculté des Sciences de Gabès (FSG) ; Institut des Sciences Chimiques de Rennes (ISCR) ; Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes) ; Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS) ; Tunisian National Ministry of Higher Education ; Scientific Research and the French Ministry of Higher Education |
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| Zeitschrift: | ISSN: 0272-8842 ; Ceramics International ; https://univ-rennes.hal.science/hal-01174897 ; Ceramics International, 2015, 41 (2, Part A), pp.1929--1936. ⟨10.1016/j.ceramint.2014.10.001⟩, 2015 |
| Veröffentlichung: | HAL CCSD ; Elsevier, 2015 |
| Medientyp: | academicJournal |
| DOI: | 10.1016/j.ceramint.2014.10.001 |
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